Obviously, if sitting on the bike was really a "Safety" issue while refueling, I'm sure there would be a law mandating that you must be off the bike in order to refuel. I see it as no different than a cager full of people along with a child, strapped in their special kiddy seat, sitting in their vehicle while refueling. And if Fire safety is the upmost importance while refueling, they would never allow self serve. They would have trained professionals pumping fuel. They would never allow amatuers such as myself to refuel with the motor running and smoking a cigarette.